This park is one of the last chief vestiges of West Africa’s primary tropical forest. The site is of great scientific significance with its rich natural flora, and various threatened mammal species, among them, the pygmy hippopotamus and 11 species of monkeys. --WHMNet paraphrase from the description at WHC Site, where additional information is available.

Taï National Park is a national park in Côte d'Ivoire containing one of the last areas of primary tropical forest in West Africa. It was inscribed as a World Heritage Site in 1982 due to the breadth of its flora and fauna - especially those which are endangered such as the pygmy hippopotamus. It covers an area of 3,300 km² with a 200 km² buffer zone up to 396 m. --Wikipedia. Text is available under the Creative Commons Attribution-ShareAlike License.